524 lines
20 KiB
C++
524 lines
20 KiB
C++
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// Copyright 2021 yuzu Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#include <algorithm>
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#include <bit>
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#include <optional>
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#include <boost/container/small_vector.hpp>
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#include "shader_recompiler/environment.h"
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#include "shader_recompiler/frontend/ir/basic_block.h"
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#include "shader_recompiler/frontend/ir/breadth_first_search.h"
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#include "shader_recompiler/frontend/ir/ir_emitter.h"
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#include "shader_recompiler/ir_opt/passes.h"
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#include "shader_recompiler/shader_info.h"
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namespace Shader::Optimization {
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namespace {
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struct ConstBufferAddr {
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u32 index;
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u32 offset;
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u32 secondary_index;
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u32 secondary_offset;
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IR::U32 dynamic_offset;
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u32 count;
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bool has_secondary;
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};
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struct TextureInst {
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ConstBufferAddr cbuf;
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IR::Inst* inst;
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IR::Block* block;
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};
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using TextureInstVector = boost::container::small_vector<TextureInst, 24>;
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constexpr u32 DESCRIPTOR_SIZE = 8;
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constexpr u32 DESCRIPTOR_SIZE_SHIFT = static_cast<u32>(std::countr_zero(DESCRIPTOR_SIZE));
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IR::Opcode IndexedInstruction(const IR::Inst& inst) {
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switch (inst.GetOpcode()) {
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case IR::Opcode::BindlessImageSampleImplicitLod:
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case IR::Opcode::BoundImageSampleImplicitLod:
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return IR::Opcode::ImageSampleImplicitLod;
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case IR::Opcode::BoundImageSampleExplicitLod:
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case IR::Opcode::BindlessImageSampleExplicitLod:
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return IR::Opcode::ImageSampleExplicitLod;
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case IR::Opcode::BoundImageSampleDrefImplicitLod:
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case IR::Opcode::BindlessImageSampleDrefImplicitLod:
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return IR::Opcode::ImageSampleDrefImplicitLod;
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case IR::Opcode::BoundImageSampleDrefExplicitLod:
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case IR::Opcode::BindlessImageSampleDrefExplicitLod:
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return IR::Opcode::ImageSampleDrefExplicitLod;
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case IR::Opcode::BindlessImageGather:
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case IR::Opcode::BoundImageGather:
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return IR::Opcode::ImageGather;
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case IR::Opcode::BindlessImageGatherDref:
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case IR::Opcode::BoundImageGatherDref:
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return IR::Opcode::ImageGatherDref;
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case IR::Opcode::BindlessImageFetch:
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case IR::Opcode::BoundImageFetch:
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return IR::Opcode::ImageFetch;
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case IR::Opcode::BoundImageQueryDimensions:
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case IR::Opcode::BindlessImageQueryDimensions:
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return IR::Opcode::ImageQueryDimensions;
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case IR::Opcode::BoundImageQueryLod:
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case IR::Opcode::BindlessImageQueryLod:
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return IR::Opcode::ImageQueryLod;
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case IR::Opcode::BoundImageGradient:
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case IR::Opcode::BindlessImageGradient:
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return IR::Opcode::ImageGradient;
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case IR::Opcode::BoundImageRead:
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case IR::Opcode::BindlessImageRead:
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return IR::Opcode::ImageRead;
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case IR::Opcode::BoundImageWrite:
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case IR::Opcode::BindlessImageWrite:
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return IR::Opcode::ImageWrite;
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case IR::Opcode::BoundImageAtomicIAdd32:
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case IR::Opcode::BindlessImageAtomicIAdd32:
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return IR::Opcode::ImageAtomicIAdd32;
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case IR::Opcode::BoundImageAtomicSMin32:
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case IR::Opcode::BindlessImageAtomicSMin32:
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return IR::Opcode::ImageAtomicSMin32;
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case IR::Opcode::BoundImageAtomicUMin32:
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case IR::Opcode::BindlessImageAtomicUMin32:
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return IR::Opcode::ImageAtomicUMin32;
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case IR::Opcode::BoundImageAtomicSMax32:
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case IR::Opcode::BindlessImageAtomicSMax32:
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return IR::Opcode::ImageAtomicSMax32;
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case IR::Opcode::BoundImageAtomicUMax32:
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case IR::Opcode::BindlessImageAtomicUMax32:
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return IR::Opcode::ImageAtomicUMax32;
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case IR::Opcode::BoundImageAtomicInc32:
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case IR::Opcode::BindlessImageAtomicInc32:
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return IR::Opcode::ImageAtomicInc32;
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case IR::Opcode::BoundImageAtomicDec32:
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case IR::Opcode::BindlessImageAtomicDec32:
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return IR::Opcode::ImageAtomicDec32;
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case IR::Opcode::BoundImageAtomicAnd32:
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case IR::Opcode::BindlessImageAtomicAnd32:
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return IR::Opcode::ImageAtomicAnd32;
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case IR::Opcode::BoundImageAtomicOr32:
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case IR::Opcode::BindlessImageAtomicOr32:
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return IR::Opcode::ImageAtomicOr32;
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case IR::Opcode::BoundImageAtomicXor32:
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case IR::Opcode::BindlessImageAtomicXor32:
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return IR::Opcode::ImageAtomicXor32;
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case IR::Opcode::BoundImageAtomicExchange32:
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case IR::Opcode::BindlessImageAtomicExchange32:
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return IR::Opcode::ImageAtomicExchange32;
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default:
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return IR::Opcode::Void;
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}
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}
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bool IsBindless(const IR::Inst& inst) {
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switch (inst.GetOpcode()) {
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case IR::Opcode::BindlessImageSampleImplicitLod:
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case IR::Opcode::BindlessImageSampleExplicitLod:
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case IR::Opcode::BindlessImageSampleDrefImplicitLod:
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case IR::Opcode::BindlessImageSampleDrefExplicitLod:
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case IR::Opcode::BindlessImageGather:
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case IR::Opcode::BindlessImageGatherDref:
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case IR::Opcode::BindlessImageFetch:
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case IR::Opcode::BindlessImageQueryDimensions:
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case IR::Opcode::BindlessImageQueryLod:
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case IR::Opcode::BindlessImageGradient:
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case IR::Opcode::BindlessImageRead:
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case IR::Opcode::BindlessImageWrite:
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case IR::Opcode::BindlessImageAtomicIAdd32:
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case IR::Opcode::BindlessImageAtomicSMin32:
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case IR::Opcode::BindlessImageAtomicUMin32:
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case IR::Opcode::BindlessImageAtomicSMax32:
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case IR::Opcode::BindlessImageAtomicUMax32:
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case IR::Opcode::BindlessImageAtomicInc32:
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case IR::Opcode::BindlessImageAtomicDec32:
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case IR::Opcode::BindlessImageAtomicAnd32:
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case IR::Opcode::BindlessImageAtomicOr32:
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case IR::Opcode::BindlessImageAtomicXor32:
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case IR::Opcode::BindlessImageAtomicExchange32:
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return true;
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case IR::Opcode::BoundImageSampleImplicitLod:
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case IR::Opcode::BoundImageSampleExplicitLod:
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case IR::Opcode::BoundImageSampleDrefImplicitLod:
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case IR::Opcode::BoundImageSampleDrefExplicitLod:
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case IR::Opcode::BoundImageGather:
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case IR::Opcode::BoundImageGatherDref:
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case IR::Opcode::BoundImageFetch:
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case IR::Opcode::BoundImageQueryDimensions:
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case IR::Opcode::BoundImageQueryLod:
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case IR::Opcode::BoundImageGradient:
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case IR::Opcode::BoundImageRead:
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case IR::Opcode::BoundImageWrite:
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case IR::Opcode::BoundImageAtomicIAdd32:
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case IR::Opcode::BoundImageAtomicSMin32:
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case IR::Opcode::BoundImageAtomicUMin32:
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case IR::Opcode::BoundImageAtomicSMax32:
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case IR::Opcode::BoundImageAtomicUMax32:
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case IR::Opcode::BoundImageAtomicInc32:
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case IR::Opcode::BoundImageAtomicDec32:
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case IR::Opcode::BoundImageAtomicAnd32:
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case IR::Opcode::BoundImageAtomicOr32:
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case IR::Opcode::BoundImageAtomicXor32:
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case IR::Opcode::BoundImageAtomicExchange32:
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return false;
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default:
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throw InvalidArgument("Invalid opcode {}", inst.GetOpcode());
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}
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}
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bool IsTextureInstruction(const IR::Inst& inst) {
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return IndexedInstruction(inst) != IR::Opcode::Void;
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}
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std::optional<ConstBufferAddr> TryGetConstBuffer(const IR::Inst* inst);
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std::optional<ConstBufferAddr> Track(const IR::Value& value) {
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return IR::BreadthFirstSearch(value, TryGetConstBuffer);
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}
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std::optional<ConstBufferAddr> TryGetConstBuffer(const IR::Inst* inst) {
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switch (inst->GetOpcode()) {
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default:
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return std::nullopt;
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case IR::Opcode::BitwiseOr32: {
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std::optional lhs{Track(inst->Arg(0))};
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std::optional rhs{Track(inst->Arg(1))};
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if (!lhs || !rhs) {
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return std::nullopt;
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}
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if (lhs->has_secondary || rhs->has_secondary) {
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return std::nullopt;
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}
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if (lhs->count > 1 || rhs->count > 1) {
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return std::nullopt;
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}
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if (lhs->index > rhs->index || lhs->offset > rhs->offset) {
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std::swap(lhs, rhs);
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}
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return ConstBufferAddr{
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.index = lhs->index,
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.offset = lhs->offset,
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.secondary_index = rhs->index,
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.secondary_offset = rhs->offset,
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.dynamic_offset = {},
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.count = 1,
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.has_secondary = true,
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};
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}
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case IR::Opcode::GetCbufU32x2:
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case IR::Opcode::GetCbufU32:
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break;
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}
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const IR::Value index{inst->Arg(0)};
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const IR::Value offset{inst->Arg(1)};
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if (!index.IsImmediate()) {
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// Reading a bindless texture from variable indices is valid
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// but not supported here at the moment
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return std::nullopt;
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}
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if (offset.IsImmediate()) {
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return ConstBufferAddr{
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.index = index.U32(),
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.offset = offset.U32(),
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.secondary_index = 0,
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.secondary_offset = 0,
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.dynamic_offset = {},
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.count = 1,
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.has_secondary = false,
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};
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}
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IR::Inst* const offset_inst{offset.InstRecursive()};
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if (offset_inst->GetOpcode() != IR::Opcode::IAdd32) {
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return std::nullopt;
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}
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u32 base_offset{};
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IR::U32 dynamic_offset;
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if (offset_inst->Arg(0).IsImmediate()) {
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base_offset = offset_inst->Arg(0).U32();
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dynamic_offset = IR::U32{offset_inst->Arg(1)};
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} else if (offset_inst->Arg(1).IsImmediate()) {
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base_offset = offset_inst->Arg(1).U32();
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dynamic_offset = IR::U32{offset_inst->Arg(0)};
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} else {
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return std::nullopt;
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}
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return ConstBufferAddr{
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.index = index.U32(),
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.offset = base_offset,
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.secondary_index = 0,
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.secondary_offset = 0,
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.dynamic_offset = dynamic_offset,
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.count = 8,
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.has_secondary = false,
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};
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}
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TextureInst MakeInst(Environment& env, IR::Block* block, IR::Inst& inst) {
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ConstBufferAddr addr;
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if (IsBindless(inst)) {
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const std::optional<ConstBufferAddr> track_addr{Track(inst.Arg(0))};
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if (!track_addr) {
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throw NotImplementedException("Failed to track bindless texture constant buffer");
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}
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addr = *track_addr;
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} else {
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addr = ConstBufferAddr{
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.index = env.TextureBoundBuffer(),
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.offset = inst.Arg(0).U32(),
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.secondary_index = 0,
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.secondary_offset = 0,
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.dynamic_offset = {},
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.count = 1,
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.has_secondary = false,
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};
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}
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return TextureInst{
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.cbuf = addr,
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.inst = &inst,
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.block = block,
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};
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}
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TextureType ReadTextureType(Environment& env, const ConstBufferAddr& cbuf) {
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const u32 secondary_index{cbuf.has_secondary ? cbuf.secondary_index : cbuf.index};
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const u32 secondary_offset{cbuf.has_secondary ? cbuf.secondary_offset : cbuf.offset};
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const u32 lhs_raw{env.ReadCbufValue(cbuf.index, cbuf.offset)};
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const u32 rhs_raw{env.ReadCbufValue(secondary_index, secondary_offset)};
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return env.ReadTextureType(lhs_raw | rhs_raw);
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}
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class Descriptors {
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public:
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explicit Descriptors(TextureBufferDescriptors& texture_buffer_descriptors_,
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ImageBufferDescriptors& image_buffer_descriptors_,
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TextureDescriptors& texture_descriptors_,
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ImageDescriptors& image_descriptors_)
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: texture_buffer_descriptors{texture_buffer_descriptors_},
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image_buffer_descriptors{image_buffer_descriptors_},
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texture_descriptors{texture_descriptors_}, image_descriptors{image_descriptors_} {}
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u32 Add(const TextureBufferDescriptor& desc) {
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return Add(texture_buffer_descriptors, desc, [&desc](const auto& existing) {
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return desc.cbuf_index == existing.cbuf_index &&
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desc.cbuf_offset == existing.cbuf_offset &&
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desc.secondary_cbuf_index == existing.secondary_cbuf_index &&
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desc.secondary_cbuf_offset == existing.secondary_cbuf_offset &&
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desc.count == existing.count && desc.size_shift == existing.size_shift &&
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desc.has_secondary == existing.has_secondary;
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});
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}
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u32 Add(const ImageBufferDescriptor& desc) {
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const u32 index{Add(image_buffer_descriptors, desc, [&desc](const auto& existing) {
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return desc.format == existing.format && desc.cbuf_index == existing.cbuf_index &&
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desc.cbuf_offset == existing.cbuf_offset && desc.count == existing.count &&
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desc.size_shift == existing.size_shift;
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})};
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image_buffer_descriptors[index].is_written |= desc.is_written;
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image_buffer_descriptors[index].is_read |= desc.is_read;
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return index;
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}
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u32 Add(const TextureDescriptor& desc) {
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return Add(texture_descriptors, desc, [&desc](const auto& existing) {
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return desc.type == existing.type && desc.is_depth == existing.is_depth &&
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desc.has_secondary == existing.has_secondary &&
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desc.cbuf_index == existing.cbuf_index &&
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desc.cbuf_offset == existing.cbuf_offset &&
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desc.secondary_cbuf_index == existing.secondary_cbuf_index &&
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desc.secondary_cbuf_offset == existing.secondary_cbuf_offset &&
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desc.count == existing.count && desc.size_shift == existing.size_shift;
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});
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}
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u32 Add(const ImageDescriptor& desc) {
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const u32 index{Add(image_descriptors, desc, [&desc](const auto& existing) {
|
||
|
|
return desc.type == existing.type && desc.format == existing.format &&
|
||
|
|
desc.cbuf_index == existing.cbuf_index &&
|
||
|
|
desc.cbuf_offset == existing.cbuf_offset && desc.count == existing.count &&
|
||
|
|
desc.size_shift == existing.size_shift;
|
||
|
|
})};
|
||
|
|
image_descriptors[index].is_written |= desc.is_written;
|
||
|
|
image_descriptors[index].is_read |= desc.is_read;
|
||
|
|
return index;
|
||
|
|
}
|
||
|
|
|
||
|
|
private:
|
||
|
|
template <typename Descriptors, typename Descriptor, typename Func>
|
||
|
|
static u32 Add(Descriptors& descriptors, const Descriptor& desc, Func&& pred) {
|
||
|
|
// TODO: Handle arrays
|
||
|
|
const auto it{std::ranges::find_if(descriptors, pred)};
|
||
|
|
if (it != descriptors.end()) {
|
||
|
|
return static_cast<u32>(std::distance(descriptors.begin(), it));
|
||
|
|
}
|
||
|
|
descriptors.push_back(desc);
|
||
|
|
return static_cast<u32>(descriptors.size()) - 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
TextureBufferDescriptors& texture_buffer_descriptors;
|
||
|
|
ImageBufferDescriptors& image_buffer_descriptors;
|
||
|
|
TextureDescriptors& texture_descriptors;
|
||
|
|
ImageDescriptors& image_descriptors;
|
||
|
|
};
|
||
|
|
} // Anonymous namespace
|
||
|
|
|
||
|
|
void TexturePass(Environment& env, IR::Program& program) {
|
||
|
|
TextureInstVector to_replace;
|
||
|
|
for (IR::Block* const block : program.post_order_blocks) {
|
||
|
|
for (IR::Inst& inst : block->Instructions()) {
|
||
|
|
if (!IsTextureInstruction(inst)) {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
to_replace.push_back(MakeInst(env, block, inst));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
// Sort instructions to visit textures by constant buffer index, then by offset
|
||
|
|
std::ranges::sort(to_replace, [](const auto& lhs, const auto& rhs) {
|
||
|
|
return lhs.cbuf.offset < rhs.cbuf.offset;
|
||
|
|
});
|
||
|
|
std::stable_sort(to_replace.begin(), to_replace.end(), [](const auto& lhs, const auto& rhs) {
|
||
|
|
return lhs.cbuf.index < rhs.cbuf.index;
|
||
|
|
});
|
||
|
|
Descriptors descriptors{
|
||
|
|
program.info.texture_buffer_descriptors,
|
||
|
|
program.info.image_buffer_descriptors,
|
||
|
|
program.info.texture_descriptors,
|
||
|
|
program.info.image_descriptors,
|
||
|
|
};
|
||
|
|
for (TextureInst& texture_inst : to_replace) {
|
||
|
|
// TODO: Handle arrays
|
||
|
|
IR::Inst* const inst{texture_inst.inst};
|
||
|
|
inst->ReplaceOpcode(IndexedInstruction(*inst));
|
||
|
|
|
||
|
|
const auto& cbuf{texture_inst.cbuf};
|
||
|
|
auto flags{inst->Flags<IR::TextureInstInfo>()};
|
||
|
|
switch (inst->GetOpcode()) {
|
||
|
|
case IR::Opcode::ImageQueryDimensions:
|
||
|
|
flags.type.Assign(ReadTextureType(env, cbuf));
|
||
|
|
inst->SetFlags(flags);
|
||
|
|
break;
|
||
|
|
case IR::Opcode::ImageFetch:
|
||
|
|
if (flags.type != TextureType::Color1D) {
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
if (ReadTextureType(env, cbuf) == TextureType::Buffer) {
|
||
|
|
// Replace with the bound texture type only when it's a texture buffer
|
||
|
|
// If the instruction is 1D and the bound type is 2D, don't change the code and let
|
||
|
|
// the rasterizer robustness handle it
|
||
|
|
// This happens on Fire Emblem: Three Houses
|
||
|
|
flags.type.Assign(TextureType::Buffer);
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
u32 index;
|
||
|
|
switch (inst->GetOpcode()) {
|
||
|
|
case IR::Opcode::ImageRead:
|
||
|
|
case IR::Opcode::ImageAtomicIAdd32:
|
||
|
|
case IR::Opcode::ImageAtomicSMin32:
|
||
|
|
case IR::Opcode::ImageAtomicUMin32:
|
||
|
|
case IR::Opcode::ImageAtomicSMax32:
|
||
|
|
case IR::Opcode::ImageAtomicUMax32:
|
||
|
|
case IR::Opcode::ImageAtomicInc32:
|
||
|
|
case IR::Opcode::ImageAtomicDec32:
|
||
|
|
case IR::Opcode::ImageAtomicAnd32:
|
||
|
|
case IR::Opcode::ImageAtomicOr32:
|
||
|
|
case IR::Opcode::ImageAtomicXor32:
|
||
|
|
case IR::Opcode::ImageAtomicExchange32:
|
||
|
|
case IR::Opcode::ImageWrite: {
|
||
|
|
if (cbuf.has_secondary) {
|
||
|
|
throw NotImplementedException("Unexpected separate sampler");
|
||
|
|
}
|
||
|
|
const bool is_written{inst->GetOpcode() != IR::Opcode::ImageRead};
|
||
|
|
const bool is_read{inst->GetOpcode() != IR::Opcode::ImageWrite};
|
||
|
|
if (flags.type == TextureType::Buffer) {
|
||
|
|
index = descriptors.Add(ImageBufferDescriptor{
|
||
|
|
.format = flags.image_format,
|
||
|
|
.is_written = is_written,
|
||
|
|
.is_read = is_read,
|
||
|
|
.cbuf_index = cbuf.index,
|
||
|
|
.cbuf_offset = cbuf.offset,
|
||
|
|
.count = cbuf.count,
|
||
|
|
.size_shift = DESCRIPTOR_SIZE_SHIFT,
|
||
|
|
});
|
||
|
|
} else {
|
||
|
|
index = descriptors.Add(ImageDescriptor{
|
||
|
|
.type = flags.type,
|
||
|
|
.format = flags.image_format,
|
||
|
|
.is_written = is_written,
|
||
|
|
.is_read = is_read,
|
||
|
|
.cbuf_index = cbuf.index,
|
||
|
|
.cbuf_offset = cbuf.offset,
|
||
|
|
.count = cbuf.count,
|
||
|
|
.size_shift = DESCRIPTOR_SIZE_SHIFT,
|
||
|
|
});
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
default:
|
||
|
|
if (flags.type == TextureType::Buffer) {
|
||
|
|
index = descriptors.Add(TextureBufferDescriptor{
|
||
|
|
.has_secondary = cbuf.has_secondary,
|
||
|
|
.cbuf_index = cbuf.index,
|
||
|
|
.cbuf_offset = cbuf.offset,
|
||
|
|
.secondary_cbuf_index = cbuf.secondary_index,
|
||
|
|
.secondary_cbuf_offset = cbuf.secondary_offset,
|
||
|
|
.count = cbuf.count,
|
||
|
|
.size_shift = DESCRIPTOR_SIZE_SHIFT,
|
||
|
|
});
|
||
|
|
} else {
|
||
|
|
index = descriptors.Add(TextureDescriptor{
|
||
|
|
.type = flags.type,
|
||
|
|
.is_depth = flags.is_depth != 0,
|
||
|
|
.has_secondary = cbuf.has_secondary,
|
||
|
|
.cbuf_index = cbuf.index,
|
||
|
|
.cbuf_offset = cbuf.offset,
|
||
|
|
.secondary_cbuf_index = cbuf.secondary_index,
|
||
|
|
.secondary_cbuf_offset = cbuf.secondary_offset,
|
||
|
|
.count = cbuf.count,
|
||
|
|
.size_shift = DESCRIPTOR_SIZE_SHIFT,
|
||
|
|
});
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
flags.descriptor_index.Assign(index);
|
||
|
|
inst->SetFlags(flags);
|
||
|
|
|
||
|
|
if (cbuf.count > 1) {
|
||
|
|
const auto insert_point{IR::Block::InstructionList::s_iterator_to(*inst)};
|
||
|
|
IR::IREmitter ir{*texture_inst.block, insert_point};
|
||
|
|
const IR::U32 shift{ir.Imm32(std::countr_zero(DESCRIPTOR_SIZE))};
|
||
|
|
inst->SetArg(0, ir.ShiftRightArithmetic(cbuf.dynamic_offset, shift));
|
||
|
|
} else {
|
||
|
|
inst->SetArg(0, IR::Value{});
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void JoinTextureInfo(Info& base, Info& source) {
|
||
|
|
Descriptors descriptors{
|
||
|
|
base.texture_buffer_descriptors,
|
||
|
|
base.image_buffer_descriptors,
|
||
|
|
base.texture_descriptors,
|
||
|
|
base.image_descriptors,
|
||
|
|
};
|
||
|
|
for (auto& desc : source.texture_buffer_descriptors) {
|
||
|
|
descriptors.Add(desc);
|
||
|
|
}
|
||
|
|
for (auto& desc : source.image_buffer_descriptors) {
|
||
|
|
descriptors.Add(desc);
|
||
|
|
}
|
||
|
|
for (auto& desc : source.texture_descriptors) {
|
||
|
|
descriptors.Add(desc);
|
||
|
|
}
|
||
|
|
for (auto& desc : source.image_descriptors) {
|
||
|
|
descriptors.Add(desc);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
} // namespace Shader::Optimization
|